Upper San Leandro (USL) Seismic Control Valve Project

Summary

SCH Number
2020060218
Lead Agency
East Bay Municipal Utility District
Document Title
Upper San Leandro (USL) Seismic Control Valve Project
Document Type
NOE - Notice of Exemption
Received
Posted
6/11/2020
Project Applicant
East Bay Municipal Utility District

Document Description
The Project will install a seismic accelerometer, 25 kilowatt emergency generator, 100 gallon propane fuel tank, and associated paving and fencing. The purpose of the Project is to automatically close the existing motor operated valves at the USL Reservoir outlet tower and prevent the release of water from USL Reservoir in the event of an earthquake induced pipeline failure. See Attachment A for additional information.

Contact Information
Shelly Dean
East Bay Municipal Utility District
375 11th Street, MS 806
Oakland, CA 94607

Phone : (510) 287-0129
shelly.dean@ebmud.com

Location

Counties
Alameda
Regions
Northern California
Other Location Info
Shore of USL Reservoir on EBMUD-owned watershed land, Alameda County, see attached Figure 1.
Other Information
The Project site is located off Redwood Road through an EBMUD access road which leads to the shore of USL Reservoir near the USL Reservoir outlet tower (see Figure 1). The access road will be used for worker and equipment access for the Project. USL Reservoir Water Supply: USL Reservoir is one of the critical storage elements of EBMUD's water supply system and has a capacity of approximately 38,905 acre feet. The flow of water from USL Reservoir to the USL Water Treatment Plant (WTP) is regulated by the USL Reservoir outlet tower, which is a 94-foot-high concrete tower equipped with a series of valves and connected at its base to an outlet tunnel. From the USL Reservoir outlet tower, untreated water flows through a 54-inch diameter tunnel for approximately 1.3 miles before reaching the "West Portal" in Oakland, where the tunnel transitions to a pipeline for approximately 1 mile before reaching the USL WTP in Oakland.

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15301 and 15303
Reasons for Exemption
Reasons why project is exempt: The Project is exempt under 15301 because it involves no expansion of the USL Reservoir's capacity and entails the repair and minor alteration of an existing public facility. The project is also exempt under 15303, since it involves the construction and location of limited numbers of new small facilities or structures. The Project will have no significant environmental effects relative to location, cumulative impact, or significant effects due to unusual circumstances, hazardous waste, or historical resources, pursuant to Section 15300.2 of the CEQA Guidelines.

Attachments

Notice of Exemption
NOE_WEB_USL Seismic Control Valve Project_061020   PDF 832 K

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